Meanwhile, research into fusion power (in which energy is generated by fusing hydrogen atoms together at very high temperatures) has left behind a different kind of debris: a trail of experimental reactors, none of which has yet reached the break-even point where the amount of energy that comes out exceeds the amount put in.

ECONOMIST: Nuclear waste

In nineteen eighty-one, Iraq was on the point of acquiring nuclear power. 10.17.01 Narrator The Osirak reactor was an experimental plutonium plant.

BBC